LS 3/5A 粉絲 一品窩 |
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回覆 (223): LS3/5A 粉絲 一品窩
hi funny ching...  
 
i had bought a few crossover from you before and had build the cabi on my own... i had try using 12mm(9ply) but they sound difference ... the cabi is heavier than the original cabi... i sound harder and fast than the real rogers gold.. i have a few questions for you on DIY LS3/5a..  
 
1. is there a difference in sound for wood veneer & piano finishing? how is it vs with the real rogers gold...  
 
2. the ply wood i can find locally is marine plywood which is 9 ply but seem like the density is much higher... what type of plywood will you suggest...  
 
3. is it a must to use tinned copper wire AWG20 between the terminates & crossover... I am using 24x 0.2mm tinned wire now...  
 
thank you...
lieu9310
13-08-21
17:32:37
回覆 (222): LS3/5A 粉絲 一品窩
OK, here is the article. Interview with Peter Thomas. I think this is the second time i upload it here at 1pk.  
 
He talked about 3/5A, BC1, BC3, ESL57, B&W, Leak etc. MUST READ!  
 
http://www.audio4maniacs.co.uk/blog-article-landmark_loudspeakers.html
bobui
13-08-18
15:57:17
回覆 (221): LS3/5A 粉絲 一品窩
http://www.youtube.com/watch?v=JV_cPz4EStY  
 
 
http://www.youtube.com/watch?v=Xz45IYZQMf0  
 
 
I am sure this is not th first time someone has uploaded the above two links here at 1pk.  
 
There is one more interview which I do remember seeing but couldnt locate it again. Its about Peter on vintage BBC speakers which kept for himself.  
 
 
 
bobui
13-08-18
15:29:54
回覆 (221): LS3/5A 粉絲 一品窩
Hee, hee, I don't know anything about UK until I start living there in 2002 :-) The rain keep asking me to leave. & I did.
Cadiver
13-08-18
15:20:58
回覆 (220): LS3/5A 粉絲 一品窩
Take a look at this please! The Rogers history part 7 part 8  
 
http://www.g4dcv.co.uk/ls35a/rogershistory.html  
 
By 1976, Rogers production was already very predictable la! How could anyone have the access to examine and research the spec of MDF before even the first batch of MDF has arrived in the UK from the US.  
 
None of the large speaker brands in the 70s have had the practice to sell their drive units to anyone outside of their companies, surely not Tannoy and B&W.  
 
The cabinet material and the drive units werent really by choice. They were more of what can be purchased for an experimental speaker project for BBC lor!  
bobui
13-08-18
14:37:31
回覆 (219): LS3/5A 粉絲 一品窩
I am sure, I broke many MDF in 1979 - 1984  
-----------------------------------------------------------------------  
 
MDF was invented in The USA in the 60s but it only first imported to EU in 1976 to a handful of companies. It didnt get popular until early 80s in EU.  
 
http://www.medite-europe.com/about-us/history  
 
I think the first Rogers 3/5A to the BBC is a little earlier than 1979 or 80 lor! Right?
bobui
13-08-18
14:07:11
回覆 (218): LS3/5A 粉絲 一品窩
 
>> 那些年,他們有中密度纖維板 (MDF)?  
 
Have !! I am sure, I broke many MDF in 1979 - 1984 in cheap apartment's kitchen shelf and bedroom chest drawer ...  
 
:-)
Cadiver
13-08-18
13:28:51
回覆 (217): LS3/5A 粉絲 一品窩
thanks for funny n rcwy hings' reply...
cchome
13-08-18
12:34:38
回覆 (216): LS3/5A 粉絲 一品窩
好似得蔗渣板 or 夾板. Very limited choice rather than specific design requirement.
bobui
13-08-18
11:47:20
回覆 (215): LS3/5A 粉絲 一品窩
那些年,他們有中密度纖維板 (MDF)?
bobui
13-08-18
11:40:21
回覆 (214): LS3/5A 粉絲 一品窩
 
背 label, 與同期間的 Rogers 金牌版本 LS3/5A 相似.
rcwy
13-08-18
11:39:24
回覆 (213): LS3/5A 粉絲 一品窩
 
背 label, 與同期間的 Rogers 金牌版本 LS3/5A 相似.
rcwy
13-08-18
11:38:39
回覆 (212): LS3/5A 粉絲 一品窩
 
LS3/6
rcwy
13-08-18
11:37:09
回覆 (211): LS3/5A 粉絲 一品窩
 
見咁高興, 放張 Rogers BBC Monitors 三兄弟照片分享吓! :)  
 
LS3/6  
LS5/9  
LS3/5A
rcwy
13-08-18
11:35:53
回覆 (210): LS3/5A 粉絲 一品窩
十分認同 Stephen 兄堅持 LS3/5A 的設計,應該用多層夾板。多層夾板較MDF(medium density fibers board, if my memory serves me correctly) 板來得富彈性,相信是 BBC 設計中其中一個要素。
rcwy
13-08-18
09:57:12
回覆 (209): LS3/5A 粉絲 一品窩
Hi cchome 兄,  
 
現代的喇叭聲箱大多採用MDF板做箱,我想一定有它的理由,可能做工材料價錢平的啦,  
但如果仿做3/5A聲箱我一定會忠於原註用9層夾板。至於用MDF做3/5A聲箱我並沒有做過,  
我想不一定會好聲過用9層夾板,65週年板是MDF做,可問下其他Ching可否好聲?  
又Lin Kan我有但一樣是衰聲,3/5A有3/5A的獨有聲音,同一個聲箱內裏的阻厘物吾同也一樣吾同聲,  
同一欵分音器也各有分別,所以須然同一牌子型號及接近期數也有吾同聲的出現。  
 
以上所說內容只是我的自我演譯,不對的請勿打頭!  
funny
13-08-17
22:20:08
回覆 (208): LS3/5A 粉絲 一品窩
To: Funny Hing,  
想問一下:  
現在大部份木箱喇叭好似是採用MDF(高壓木板)做的,而當年的LS3/5A聲箱是用9層夾板所做的;想問ching有沒有用過MDF做LS3/5A? 仍存在嗎? 與夾板做的LS3/5A聲音最大分别在那裏呢?  
 
謝!
cchome
13-08-17
10:33:54
回覆 (207): LS3/5A 粉絲 一品窩
funny
13-08-06
00:21:19
回覆 (206): LS3/5A 粉絲 一品窩
剛完成一對鋼琴漆仿 LS3/5A 喇叭,分音器是參照最早期 ROGERS 大金牌制造,
funny
13-08-06
00:20:14
回覆 (205): LS3/5A 粉絲 一品窩
BBC ( The Library and Links )  
 
RD1972/34 (page 11)
funny
13-06-20
03:06:49
回覆 (204): LS3/5A 粉絲 一品窩
今次行程大有收獲,每隻一蚊加紙.
funny
13-06-20
02:47:36
回覆 (203): LS3/5A 粉絲 一品窩
Hi Lieu hing,  
 
It should be 12mm 9 layer fly wood.
funny
13-06-05
14:10:49
回覆 (202): LS3/5A 粉絲 一品窩
hi funny hing..  
 
so the box is 9mm plywood?  
 
interesting project...  
lieu9310
13-06-05
12:16:10
回覆 (202): LS3/5A 粉絲 一品窩
hi funny hing..  
 
so the box is 9mm plywood?  
 
interesting project...  
 
lieu9310
13-06-05
12:14:46
回覆 (201): LS3/5A 粉絲 一品窩
跟據資料顕示 3/5 的髙音採用 KEF T27(A6340) 而中低音則用早期 KEF B110 (A6362)  
 
分音器型號用 FL6/16 但是為 9 Ohm 5升容積,當時單元布局是上面是 B110 而下面是  
 
T27, BBC 內部生產 20 隻並進行測試,後來正準備同生產商大量生產時,發覺 B110  
 
(A6362) 和 T27 (A6340) KEF 已經斷貨,所以改用當時生產之 B110 (SP1003) 和  
 
T27(SP1032) 15 Ohm 而髙低音單元則上下對換變成往後 3/5A 的外貌。  
 
資料不對吾好打頭................:))
funny
13-06-05
10:23:10
回覆 (200): LS3/5A 粉絲 一品窩
應是inductor電感器。
funny
13-06-04
15:18:36
回覆 (199): LS3/5A 粉絲 一品窩
Hi Lieu hing,  
 
FL6/16 是設計3/5時的分音器所用的PCB 代號碼,  
實際同FL6/23線路是否一樣就要收到後才知道分別。  
聲音好與否是見仁見智,淨3/5同3/5A的induction以  
經有分別,而用電容器牌子亦不同,所以聲音一定有  
別於3/5A,好定更好?到時有機會再大家比吖下意見。
funny
13-06-04
15:16:35
回覆 (198): LS3/5A 粉絲 一品窩
hi... funny hing...  
 
what is the difference between FL6/16 & FL6/23?  
 
any photo for the crossover ... great job...  
 
lieu9310
13-06-02
19:02:04
回覆 (197): LS3/5A 粉絲 一品窩
funny
13-06-02
00:09:41
回覆 (196): LS3/5A 粉絲 一品窩
今天做二個仿牌,又在分音器身上加多及換上Philips MKT 電容,  
 
又換上大磁早期 KEF B110 白鐵框單元, 試音後甚為驚喜,系我  
 
最最理想的一對仿制品.有早期金牌厚潤但不矇,定位及音場似後  
 
期金牌,而人聲又無後期金牌噤喧染,低頻下潛力參透力都優勝.  
 
funny
13-06-02
00:02:27
回覆 (195): LS3/5A 粉絲 一品窩
Hi, lieu9310 hing, how it sound...  
---------------------------------------  
Excellent........HaHaHa.......................  
 
 
Hi, Richard 兄  
分音器原本是 FL6/16 但我現在這對用 FL6/23 同後期金牌一樣,現在試聽後  
太似後期金牌聲底,在以訂購 FL6/16 kit set 但未到貨之前,我會試換早期大  
金牌電容再作比較,試後再分享.  
 
如果有機會聽吓更妙! ^^  
------------------------------  
隨時歡迎. :))  
funny
13-06-01
01:39:17
回覆 (194): LS3/5A 粉絲 一品窩
 
又: LS3/5 的分音, 和 LS3/5A 的分音, 是完全相同的嗎?  
 
rcwy
13-06-01
00:04:05
回覆 (193): LS3/5A 粉絲 一品窩
Funny,  
 
睇到圖片已經好 high!  
如果有機會聽吓更妙! ^^  
 
rcwy
13-06-01
00:02:14
回覆 (192): LS3/5A 粉絲 一品窩
well done! bro funny... how it sound...
lieu9310
13-05-30
23:45:26
回覆 (191): LS3/5A 粉絲 一品窩
 
 
聽講 35仔响「易悲」又擦新記錄。  
 
funny要密 D 手啦!  
 
limage
13-05-24
11:40:16
回覆 (190): LS3/5A 粉絲 一品窩
Clone LS3/5 終於完成.試音十分滿意.
funny
13-05-23
22:22:59
回覆 (189): LS3/5A 粉絲 一品窩
funny
13-05-23
22:14:33
回覆 (188): LS3/5A 粉絲 一品窩
funny
13-05-23
22:13:55
回覆 (187): LS3/5A 粉絲 一品窩
funny
13-05-23
22:13:02
回覆 (186): LS3/5A 粉絲 一品窩
funny
13-05-23
22:11:40